Speed measuring device



FIG. 1 is a perspective view of front, top and left side of a speed measuring device showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a front view showing usage thereof.

The portions of the article in broken lines are shown for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a speed measuring device, as shown and described. 